Senior Airman Kailey Simmonds, 22nd Aircraft Maintenance Squadron assistant flying crew chief, monitors a tire pressure gauge as she fills a tire with nitrogen, July 11, 2017, at Eielson Air Force Base, Alaska. After the KC-135 Stratotanker receives fuel, crew chiefs ensure the tanker tires have the right amount of PSI to support the heavier aircraft.

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Size: 1618px × 1236px
Photo credit: © Bob Collet / Alamy / Afripics
License: Licensed
Model Released: No

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